Second Generation Tiancimycin-Based Antibody–Drug Conjugates Enabled by Highly Efficient Semi-synthetic Approach Specifically Targeting B-Cell Malignancies - Alexander F. Kiefer; Pankajavalli Thirugnanasambantham; Yuan Jin; Andrew D. Steele; Dobeen Hwang; Yanlong Jiang; Ajeeth Adhikari; Dong Yang; Jing Chang; Rakeb Tafesse; Christoph Rader; Natarajan Muthusamy; et al. (JACS Au)